Industry
Oil & Gas
Pressure-rated components machined to API expectations, with the certs to prove it.
FabVector machines Oil & Gas parts in Alloy Steel 4140, Stainless Steel 316L, Stainless Steel 17-4 PH, from 1 piece, with instant online estimates, engineer-reviewed quotes in 24 hours and NDA-protected files. Delivery with duties handled to the US, Canada, UK and Australia.
- Materials
- Alloy Steel 4140, Stainless Steel 316L, Stainless Steel 17-4 PH
- Minimum order
- 1 piece
- Estimate
- ~60s online
- Quote
- engineer-reviewed 24h
- IP
- NDA from upload
What slows this industry down
Oil and gas parts work where failure is measured in blowouts, not warranty claims: valve internals and downhole tools see pressure, vibration and H2S-laden sour service simultaneously. NACE MR0175 turns material selection into a compliance question — hardness limits and alloy restrictions that rule out the obvious cheap choice. Every pressure-bearing part needs an EN 10204 3.1 certificate tracing it to a tested heat lot, and a missing cert can quarantine an entire shipment at the wellsite. Procurement swings between urgent rig-down replacements and planned project packages, and suppliers must serve both without compromising documentation.
Typical parts we machine
- Valve bodies, stems and trim components
- Downhole tool housings and subs
- Flanged connections and hub adapters
- Sensor pressure housings and instrument ports
- PEEK seals, seats and back-up rings
Recommended materials
Alloy Steel 4140
Chromoly muscle: deep-hardening alloy steel for heavily loaded shafts, tooling and gears.
Stainless Steel 316L
Marine and medical stainless: molybdenum chemistry that shrugs off chlorides and sterilization cycles.
Stainless Steel 17-4 PH
Stainless that hardens like tool steel: 1,310 MPa in H900 with minimal distortion.
PEEK
The polymer that replaces metal: 250 °C service, chemical immunity, implant-grade options.
Recommended finishes
PTFE Coating (Teflon)
The slippery armor: fluoropolymer for low friction, non-stick release and chemical inertness.
Electroless Nickel Plating (ENP)
Plating without electricity: dead-uniform thickness everywhere, bores and threads included.
Passivation
Chemical hygiene for stainless: strips embedded iron so the steel can be as stainless as advertised.
Certifications & standards
- API Q1
- We understand API Q1 supply chains and the process documentation discipline oilfield equipment manufacturers flow down to machining suppliers.
- API 6A
- We understand API 6A requirements for wellhead and christmas-tree components, including material class and PSL documentation expectations.
- NACE MR0175
- We understand NACE MR0175 sour-service constraints — hardness limits and alloy restrictions are applied at material selection, not discovered at inspection.
- EN 10204 3.1
- We support EN 10204 3.1 certificates on every pressure-bearing part, tracing it to a tested mill heat lot.
We understand and support these requirements; certification and documentation scope is confirmed per order.
Questions oil & gas buyers ask
- What does NACE MR0175 mean for machined valve and wellhead parts?
- It restricts material condition in H2S service: hardness caps (e.g. 22 HRC for many carbon and low-alloy steels), controlled heat-treat states, and documented compliance per heat. Practically, you specify the alloy and condition, we buy to it and hand you the 3.1 cert plus hardness results — substitution is not a favour anyone should do you.
- Can 4140 downhole tool bodies be machined and coated to spec offshore of the US?
- Yes — 4140 QT bodies, mandrels and subs with PTFE or electroless nickel coating are standard work, threads cut and gauged to your programme's spec including API forms where the drawing calls them. The gauge certificate travels with the parts.
- How is pressure-part traceability handled from bar stock to shipment?
- Every pressure-path part ties to a heat number: the 3.1 certificate is matched at material receipt, the job traveller carries the heat through machining, and the shipment paperwork closes the chain. Ask for the trace package at RFQ and it costs little; reconstruct it later and it costs the batch.
Relevant services
CNC Turning
Live-tooling lathes for shafts, pins, bushings and threaded fittings up to Ø406 mm.
CNC Milling
3- and 4-axis vertical machining for housings, brackets, manifolds and structural parts.
Production Machining
Dedicated fixturing, in-process CMM and SPC documentation for repeatable volume runs.
Custom Forging
Forged blanks and finished load-bearing parts, with tooling, machining, heat treatment and inspection coordinated as one program.
CNC machining service by country
Have a part in mind?
Upload CAD or drawings. Eligible CNC work gets an instant estimate; other processes move to engineer review. NDA-protected from the first byte.
Start an RFQ